Paper container



i ,e27,04s

A." MOORE May 3, 1927,

PAPER CCNTAINER Filed April 24. 1920 a WW INVENTOR 14/7/0722 Woe/6 ATTORNEY Patented May 3, 1927. I

UNITED STATES PATENT. OFFICE.

.anmneron moon, or woacns'raa, massaonvssrrs, Assm'nofi'ro man-moons conroan'rron, or WILMINGTON, DELAWARE, a conclusion or nnmwum.

' PAPER CONTAINER.

Application flled Aprfl 24, 1920. Serial No. 376,400.

Theipresent invention relates to aper containers, that is, to containers ma e of any suitable fibrous stock, whether paper or resembling paper, and particularly to the neckand the cap fitted therein. The container may be in the form of a can with a cylindrical side wall, or in any suitable polygonal or curved form, wound or formed 'in any suitable way and having a bottom seal of any suitable kind. The paper stock may be single or multiple ply with or without incorporating a binder, and the container may be coated with parafline or the like and may have a paper covering or advertising label.

I have found it desirable to provide a seat or ledge projecting a considerable distance inwardly of the side wall of the container, for otherwise the ca the contents in sealing the container. In accordance with this part of my invention, the neck, reenforced for strength and formed from a continuation of the side wall so as to be integral therewith, has a ledge which projects sufficiently inwardly of the side wall to form a seat that not only supports the cap over an extended area but practically insures that the cap will not be pushed into the contents. For this purpose the'ledge is formed of a plurality of folded portions, preferably of two, the terminal portion being enclosed between the other port1ons with its end surface-covered thereby or in contact therewith so as to prevent capillary attraction through its raw edge. In the preferred embodiment hereinafter described these folded portions comprise a base portion, an intermediate portion, and a terminal portion folded upwardly between the base and intermediate portions; the intermediate portion having a horizontal part and the terminal portion extending into contact therewith to form the ledge. So also, in this embodiment, the reenforced neck has a cap-retaining groove formed by an outwardly bul mg part, and the ledge projects inwardly o the side wall in uninterrupted conformity .with the lower surface thereof to further extend the seating surface. Preferabl the cap, seated in the groove and on the edge, is, in

order to more'efi'ectively seal the contamer,

gripped on its upper surface by the upper edge of the roove, which extends outside of the upper e ge of the side wall to facihtate the fitting of the cap in the groove. Further is often pushed into than the advantages pointed out above, this specific form of construction compensates nicely for changes in gage dimensions, due to manufacturing inaccuracies and to expansion and contraction of the blanks before they are formed into containers, for the ledge may extend to any required depth witnnthe container.

Whether or not the container has a neck of the foregoing form, but preferably so, the

invention comprehends as another of its parts a paper container in which the upper part of the neck is turned over a ainst the top surface of the ca to tighty seal it therein after filling. lhus, before filling, the conta1ner comprises an upstanding neck which is of a height sufficient to be turned over against the cap, the intention being that the container be su plied to the packer with the neck upstan ing, and that the packer turns over the neck to seal the contents. In the s ecific embodiment hereinafter described, t e terminal part of the neck is enclosed within the folds of the turned over upper portion and preferably extends upwardly into contact with another part thereof so that the possibility of the ingress and egress of moisture or foreign matter between the folds is minimized. In fact this part, turned over against the upper surface of the cap, is highly compressed and ractically solidified to form a rigidly set head, so that the container is securely closed particularly where the ca is gripped between the upper and lower e ges of the cap-retaining groove. Where the previously mentioned ledge, on which the cap is seated, is also highly compressed and practically solidified into rigidly set form, the cap is substantially hermetically sealed in the neck of the container almost indefinitely.

Although the container may ,have any suitable form, I prefer the form of a. firkin wherein the side wall flares upwardly, for then the containers, without the caps, may

be nested in shipment to the packer. Furture or liquids from the contents between the folds formin the reenforced neck. The ressure to w ich the reenforced neck is subected in formin it is made possible by the added stock of-t e folds. a

In the accompanyln .1 drawings Illustrating the preferred em odiment of the 1nvention in application, as an example, to a. firkin of sing e ply stock, having a ermetlcall sealed bottom, ig. 1 is an elevation, partially 1n section and partly broken away in full 'vlew, of the container with the neck upstanding as before sealin Fig. 2 is an enlarged sectional detail of t e upstanding neck with the cap fitted therein; Fig. 3 is a' view similar. to Fig. 1 but with the upper part of the neck turned over: and Fi 4 is an enlarged sectional detail thereo with the neck shown upstanding in broken lines.

The container has an upwardly flaring side wall 1 of paper stock of suitable thickness and surface finish, and a hermetically sealed bottom closure 2 formed by so interlocking and compressing folded portions of a continuation of the side wall with folded ortions of the bottom member 3 as to rigidy set them against penetration and against upward and downward pressure.

The reenforced neck is formed from acontinuation of the side wall and comprises a base portion4, an intermediate portlon 5,

and an abbreviated terminal portion 6 folded upwardly between the base and intermediate portions, so as to have its outer surface in contact at 7 with the base portion and its inner surface in contact at 8 with the intermediate portion. The neck has a cap-re-- taining groove 9 formed by an outward bulge at 10 of the base and intermediate portions, and the intermediate portion has a horizontal part 11 extending inwardly of the sidewall in uninterrupted conformity with the lower surface of the groove. The peripheral surface of the terminal portion 6 is in contact at 12-with the underside of the horizontal part 11 so as to prevent capillary attraction of contents of the container through the raw edge of the paper stock with the consequent contamination and change of the contents. The intermediate portion forms with the terminal portion a ledge '13, which has its inside surface at 14 substantially vertical so as to form an extended seating surface -for a. suitable paper cap 15. Not only does the ledge extend inwardly of the side wall for a suflicient distance to'provide a suitable seat for the cap, but it also prevents the cap from being pushed readily into the contents when sealing the container. Furthermore, although the cap is held against that seat by the upper edge 16 of the groove, that edge lies outside of the upper edge of the side inch. The lower part 0 wall .to enable the cap to be readily fitted in place for sealing.

In order thatthe neck, and particularly the ledge 13, may be rigidly set to permanent gage dimensions, those parts are preferably subjected, in forming, to a pressure of from 4,000 to 6,000 ounds er square F the le go is compressed more than the upper part to bring v. the inner surface thereof substantially ver- --tical and also to force moreintimately into contact with each other the lower parts of the ledge and base portion to thereby more effectively exclude the seepage bf the con-' tents of the containerbetween the folds of the neck. a

' The firkins are intended to be shipped to the packer in the formshown in Fig. 1, the cap 15- being removed to permit nesting. After a container is filled, the up er part of the neck'is turned over against t c upper surface of. the ca into a highly compressed, practically, solidlfied and. rigidly set bead 17, hermetically sealing the. cap in place with the terminal part 18 folded upwardly into contact with another part and enclosed therebetween to prevent the ingress or egress of moisture or foreign matter between the folds of the bead.

A sealed container of this kind, filled with liquids or solids, such as molasses, cheese, etc., may be transported without hazard, and maintain its dimensions and hermetical closure almost indefinitely. Still the container may be readily opened to consume the contents by cutting away the ca 15.

Having thus described my mvention, what I claim is:

1. In a paper container; 0. side wall; a bottom closure therefor; a renforced neck formed from a continuation of the side wall and hafving a ledge projecting inwardly thereof and formed of a plurality of folded -bottom closure therefor; a reenforced neck formed from a continuation of the side wall and having a ledge projecting inwardly thereof and formed of a plurality of folded portions including an upwardly extending terminal portion enclosed between the other portions; and a cap seated on said ledge.

3. In a paper container; at side wall; a bottom closure therefor; a reenforced neck formed from a continuation of the side wall and comprising a base portion, an intermediate portion, and a terminal portion folde'l upwardly between the base and intermediate portions, said intermediate and terminal portions forming a ledge projecting inward- 1y of the side wall; and a cap seated on said ledge.

4. In a paper container; a side wall; a bottom closure therefor; a reenforced neck formed from a continuation of the side wall and comprising a base ortion, an intermediate portion, and an a breviated terminal portion folded upwardly between the base and intermediate portions and terminating underneath the intermediate portion, said intermediate and terminal portions forming a ledge projectin inwardly of the side wall; and acap seatet on said ledge.

5. In a paper container; a side wall; a bottom closure therefor; a recnforced neck formed from a continuation of the side wall and having a horizontal part forming a led e projecting inwardly of the side wall wit a terminiil portion extending upwardly underneath the horizontal part; and a cap seated'on said ledge.

6. In a paper container; a side wall: a bottom closure therefor; a reenforced neck formed from a continuation of the side wall and having a horizontal part forming a ledge projecting inwardly of the side wall with a terminal portion extending upwardly into contact with the horizontal part; and a cap seated on said ledge.

In a paper container; a side wall; a bottom closure therefor; a recnforc'ed neck formed from a continuation of the side wall. EOIUOII, an 1nterme-- and comprising a base diate portion having a orizontal 'part'projecting inwardl of the side wall, and a terminal portion olded upwardly between the base and intermediate portions to form a lodge with the latter; and a cap seated on said ledge.

8. In a paper container; a side wall; a. bottom closure therefor; areenforced neck formed from a continuation of the side wall and comprising a base portion, an intermediate portion having a horizontal part projecting inwardly of the side wall, and an abbreviated terminal portion folded upwardly between the base and intermediate portions and terminating underneath the intermediate portion to form a ledge therewith; and a cap seated on said ledge. 1

9. In a paper container; aside wall; a bottom closure therefor; a reenforced neck formed of folded portions of a continuation of the side wall, said neck having a capretaining groove formed by an outwardly bulging part and having a ledge projecting inwardly of the side wall in uninterrupted conformity with the lower surface of the groove; and a cap seated in said groove and on said ledge.

10. In a paper container; a side wall; a bottom closure therefor; a reenforced neck formed from a continuation of the side wall and comprising a base portion, an intermediate portion having a horizontal part projecting inwardly of the side wall, and a terminal portion folded upwardly between the base and intermediate portions and terminating underneath said horizontal part to form' a ledge therewith, said neck having a cap-retaining groove formed by an outwardly bulging part with a lower surface in uninterrupted conformity. with said horizontal part to form a seat; and a captitted in said groove and on said seat.

-11. In a paper container; a side wall; a

bottom closure therefor; a reenforced neck formed of folded portions of a continuation of the side wall, said neck having a capretaining' groove formed by an outwardly bulgin part and havinga ledge projecting inwarc ly of the side wall in uninterrupted conformity with the lower surface of the groove; and a cap seated insaid groove and on said ledge and being gripped on its upper surfaceby the upper. edge of said groove.

12. In a paper container; a side wall; a bottom, closure therefor; a reenforced neck formed of folded portions of a continuation of the side wall, said neck having a cap-reuninterrupted conformity with the lower surface of the groove: and a cap seated in said groove and on said ledge; the upper edge of said cap-retaininggroove being outside the upper edge of the sidewall.

13. In a paper container; a side wall; a bottom closure. therefor; a lfC'GIlfOPCQ-tl neck formed from a continuation of the side wall and comprising a base portion, an intermediate portion, and a terminal portion folded taining groove formed by an outwardly upwardly between the base and intermediate portions; and a cap fitted in said neck; the upper part-of the neck being turned over against the top surface of the cap.

14. In a paper container; a side wall; a bottom closure therefor; a' reenforced neck formed of folded portions of a continuation of the side wall and having a cap-retaining groove; and a cap seated in said groove; the upper partof the neck being turned over against the top surface of the cap.

15. In a paper container; aside wall; a bottom closure therefor; a reenforcedncck formed of folded portions of a continuation of the side wall and having a cap-retaining groove; and a cap seated in said groove and gripped between the upper and lower edges thereof: the upper part of the'neck being turned over against the top surface of the cap.

16. In a paper container; a sidewall; a bottom closure therefor; a reenforoed neck which is formed of folded portions of a continuation of the side wall and which has a ledge projecting inwardly of the s'de' wall; and a cap fitted in said neck and seated on said ledge; the upper part of the neck being cap.

17. In a paper container; a sidewall; a" bottom closure therefor; a reenfor ed 9 1; formed of folded portions of a continuation of the side wall, said neck having man yf;

taining groove formed by, an outwardly bulging part and having a ledge project-y mg inwardly of the side wall in uninter rupted conformity with the lower surface of the groove; and a cap seated in sa d groove and on said lodge; the upper part of the' against the top suring a rigidly set ledge projecting inwardly of the side wall; andfla cap-seatedion said 19. In a'papen container; -aside wall; a bottom closur therefor; a reenforced neck formed from acontmuation of the side wall and comprising a base. portion, an intermediate portion, and a terminal portion folded upwardly between thefbase and interin'ediatewportions, said intermediate and terminal portions being highly compressed and 'nactically solidified to form a rigidly setledge projecting inwardly of the s-de wall; and a cap seated on said ledge.

20. In .a paper container; a side wall; abotlom closure therefor; a reenforeed neck.- formed from a continuation of the s1de Wall and comprising a base portion, an interinndiate portion, and a terminal portion folded upwardly between the base and intermediate portions, said intermediate and terminal portions being highly compressed and practically solidified to form a rigidly set ledge which projectsinwardly of the side wall and which has-its'outer surface 1n contact with the sidewall 'and its inner surface I substantially vertical; and a cap seated on said ledge.

21." In a paper container; an upwardly flaring side wall; a bottom closure therefor;

11. reenforced neck formed from folded porsw f a continuation of the side wall and having a ledge which is formed of a pluralityof folded portions and which pro]ects inwardly of the side wall; and a cap seated on said-ledge.

22. In a paper container; an upwardly flaring side wall; a bottom closure therefor; a reenforced neck formed from a continuation of the side wall and comprising a base poition, an intermediate portion, and a ter-' minal portion folded upwardly between the base and intermediate portions, sald inter- 1 mediate and terminal portions forming a ledge projecting inwardly of the side wall;

and a cap seated on said ledge.

23. In a paper container; an upwardly flaring side wall; a bottomclosuretherefor;

a reenforced neck formed from folded porlions of a continuation of the side wall, said neck having a capretaining groove-formed by an outwardly bulging part and also having a ledge projecting nwardly of theside wall in uninterrupted{conformity with the lower surface of the groove, 'anda capseated in said groove and on said ledge.

24. In a paper container; an upwardly flaring side wall; a bottom closure therefor; a reenforced' neck formed of. folded portions of a continuation of the side wall and having a ledge which projects inwardly of the 1 side wall and which has a greaterthickness at the top than at the bottom; and a cap seated on said ledge.

25. In a paper container; an upwardly flaring side wall; a;bottom closure therefor; a reenforced neck formed of folded portions of a continuation of the side wall and havingaledgeflvhich pro ects inwardly.

of the side wall and which has its outer surface in'contact with the side wall and its inner surface substantially vertical; and a ap seated on said ledge.

26. a paper container; an, upwardly flaring side wall; a bottom closure therefor; a reenforcedneck formed from a continuation of the side wall and comprising a base portion,tan intermediate portion,

' and a terminal portion folded upwardly between the base and intermediate portions, said intermediate and terminal portions forming-a ledge which'projects inwardly of the side wall and which has its outer surface in contact with the side wall and its inner surface substantially vertical; and a cap seated on said ledge.

27. In avpaper container; a side wall; a bottom closure therefor; a\ reenforced neck formed from a continuation of the side wall and comprising a base portion, an intermediate portion, and a terminal portion folded upwardly between the base and intermediate portions, said intermediate and terminal portions being highly compressed and practically solidified to form a rigidly set ledge projecting inwardly of the side wall; and a cap seated on said ledge; the upper part of the neck being turned over against the top surface of the cap and being highly compressed and practically solidified to form a rigidly set head.

28. Ina paper container; a side wall; a bottom'closure therefor; a rcenforced neck formed from a continuation of the side wall and comprising a base portion, an intermediate portion, and a terminal portion folded upwardly between the base and iiiltcrmediate portions, said intermediate and terminal portions being highly compressed and practically solidified to form a rigidly set ledge which projects inwardly of the side wall and which has its outer surface in contact with the side wall and its inner [iii till

. flaring side wall; a bottom closure therefor a reenforced neck formed from folded portions of a continuation of the side wall and having a highly compressed, practically solidified part forming a rigidly set ledge projecting inwardly of the side wall; and a cap seated on said ledge; the upper part of the neck being turned over against the top surface of the cap and being highly compressed and practically solidified into a rigidly set head.

30. In a paper container; an upwardly flaring side wall; a bottom closure therefor; a rcenforced neck formed from a continuation of theside wall and comprising a base portion, an intermediate portion, and a terminal portion folded upwardly between the base and intermediate portions, said intermediate and terminal portions having a highly compressed, practically solidified part forming a rigidly set ledge projecting inwardly of the side wall; and a cap seated on said ledge; the upper part of the neck being turned over against the top surface of the cap and being highly compressed and practically solidified to form a rigidly setbead.

31. In a paper container; an upwardly flaring side wall; a bottom closure therefor; a reenforced neck formed from a continuation of the, side wall and comprising a base portion, an intermediate portion, and a terminal portion folded upwardlybetween the base and intermediate portions, said neck having a cap-retaining groove formed by an outwardly bulging part and also having a highly com-pressed, practically solidified part forming a rigidl set ledge projecting inwardly of the side wall in uninterrupted conformity with the lower surface of the groove; and a cap seated in said groove and on said ledge; the upper part of the neck being turned over against the top surface of the cap and bein highly com ressed and practically solidifie into a rigid y set bead.

32. In a paper container; an upwardly flaring side wall; a bottom closure therefor; a reenforced neck formed from a continuation of the side wall and comprising a base portion, an intermediate portion, and a terminal portion folded upwardly between the base and intermediate portions, said neck having a cap-retaining groove formed by an outwardly bulging part and also having a highly compressed, practically solidified part forming a rigidly set ledge which projects inwardly of the-side wall in uninterrupted conformity with the lower surface of the groove and which has its outer surface in contact with the base portion and its inner surface substantially vertical; and a cap seated in said groove and on said ledge; the upper part of the neck being turned over against the top surface of the cap and being highly compressed and practically solidified into a rigidly set bead.

A paper container having the edge of its body portion folded inwardly and downwardly to form the lip of'the container,

' and having a closure-receiving seat formed by folding the inner wall inwardly, downwardly and outwardly, the material of the folds being of sullicientthiclmess and inherent strength to preserve the form of the closure seat, said seat constituting a ledge projecting inwardly of the side wall of the container. e

In testimony whereof I aflix my signature.

ARLINGTON MOORE. 

